RX antenna - Single wire classic beverage antenna
This revision is from 2021/03/18 21:40. You can Restore it.
← More nice construction informations at web by Bruce "Swede" K1FZ
rev.0.1 2/2017 by Jan OK2ZAW

Feeder BOX(Edit)
- This box contains of transformer 450 Ohm to 50 or 75 Ohm and protections
 


- Part list
 
| PTC_F | PTC 5mm | piece 1 | PTC 100mA | 
| GL | Neon lamp | piece 1 | neon lamp 100V | 
| Tr | Transformer | piece 1 | BN-73-6802 | 

TRANSFORMERS winding - very important thing!(Edit)
- for 50 ohm coax feed line : 2 turns on primar (coax) and 6 turns on secondar side (loop)
 - for 75 ohm coax feed line : 2 turns on primar (coax) and 5 turns on secondar side (loop)
 
- Transformer should have 5 + 1 turns. So you wind 5 turns and 1more as a tap.



Common mode current choke(Edit)
- Common mode current choke construction
 - Wind 4 turns on one side than cross to another side of cores and wind rest turns.
 



Terminator BOX(Edit)
- This box contains of Load resistors for the antenna and protections
 

- Part list
 
| PTC_F | PTC 5mm | piece 1 | PTC 100mA | 
| GL | Neon lamp | piece 1 | neon lamp 100V | 
| R1 | Resistor 2W | piece 1 | Ohm 750 | 
| R2 | Resistor 2W | piece 1 | Ohm 750 | 
| R3 | Resistor 2W | piece 1 | Ohm 1000 | 
| R4 | Resistor 2W | piece 1 | Ohm 1200 | 

